Patent US2879139A successfully refreshed from Google Patents.
US2879139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hydrogen and apparatus therefor
Assignee: Individual
•
Filing: 1956-10-03
•
Granted: 1959-03-24
•
Expires: 1976-10-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Thomsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:12
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/04; C10J3/46; C10J3/48; C10J3/482; C10J3/72; C10J3/721; C10J3/723; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/094; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/0976; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/18; C10J2300/1807
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
140 words
THE METHOD OF MAKING HYDROGEN WHICH COMPRISES; PASSING A GASEOUS FLUID CONSISTING ESSENTIALLY OF HYDROGEN, NITROGEN AND STEAM, ALTERNATELY IN OPPOSITE DIRECTIONS, THROUGH A BODY OF CARBON MAINTAINED AT REACTION TEMPERATURES BY THE CONTROLLED ADMISSION OF AIR, AT SUCH A RATE THAT THE CARBON DIOXIDE PRODUCED SHALL AT NO TIME EXCEED THREE TIMES THE WEIGHT OF THE RESIDENT HYDROGEN; STORING A PORTION OF THE SENSIBLE HEAT IN SAID GASEOUS FLUID AS IT LEAVES THE COMBUSTION CHAMBER IN TWO ALTERNATE HEAT ACCUMULATORS ON EACH REVERSAL OF FLOW; REMOVING THE CARBON DIOXIDE THUS PRODUCED FROM SAID FLUID AFTER SAID COOLING THROUGH THE HEAT ACCUMULATORS; SPLITTING OFF A FRACTION OF SAID GASEOUS FLUID AS AN ACCEPTED FRACTION; CONVEYING STORED HEAT TO THE REMAINING FRACTION BY PASSAGE THROUGH THE ALTERNATE HEAT ACCUMULATOR AND THEN RE-CYCLING SAID FRACTION TO THE BODY OF CARBON ORIGINALLY CITED.
Claim 2
Independent Claim
140 words
THE METHOD OF MAKING HYDROGEN WHICH COMPRISES; PASSING A GASEOUS FLUID CONSISTING ESSENTIALLY OF HYDROGEN, NITROGEN AND STEAM, ALTERNATELY IN OPPOSITE DIRECTIONS, THROUGH A BODY OF CARBON MAINTAINED AT REACTION TEMPERATURES BY THE CONTROLLED ADMISSION OF AIR, AT SUCH A RATE THAT THE CARBON DIOXIDE PRODUCED SHALL AT NO TIME EXCEED THREE TIMES THE WEIGHT OF THE RESIDENT HYDROGEN; STORING A PORTION OF THE SENSIBLE HEAT IN SAID GASEOUS FLUID AS IT LEAVES THE COMBUSTION CHAMBER IN TWO ALTERNATE HEAT ACCUMULATORS ON EACH REVERSAL OF FLOW; REMOVING THE CARBON DIOXIDE THUS PRODUCED FROM SAID FLUID AFTER SAID COOLING THROUGH THE HEAT ACCUMULATORS; SPLITTING OFF A FRACTION OF SAID GASEOUS FLUID AS AN ACCEPTED FRACTION; CONVEYING STORED HEAT TO THE REMAINING FRACTION BY PASSAGE THROUGH THE ALTERNATE HEAT ACCUMULATOR AND THEN RE-CYCLING SAID FRACTION TO THE BODY OF CARBON ORIGINALLY CITED.
Claim 3
Dependent Claim
68 words
THE METHOD OF MAKING HYDROGEN SET FORTH IN CLAIM 1, WITH THE ADDED STEP THAT AFTER PARTIAL COOLING BY PASSAGE THROUGH A HEAT ACCUMULATOR SAID GASES BE NEXT PASSED OVER A CATALYST SUITABLE FOR PROMOTING THE REACTION BETWEEN CO AND STEAM, THE TOTAL HEAT THUS GENERATED AS WELL AS THE HEAT NOT ABSTRACTED IN THE FORMER ACCUMULATOR BEING STORED IN A SECONDARY ACCUMULATOR PRIOR TO REMOVAL OF CO2.
References Cited (Backward Citations)
US1223242A
Cited
US1505065A
Cited
US1794232A
Cited
US2502670A
Cited
DE897610C
Cited
US2755321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |